Abstract This study explores an innovative microfluidic system incorporating dynamic electromagnets and magnetic beads for the efficient separation and detection of micropollutants in wastewater, aiming to enhance real-time in situ monitoring. Traditional wastewater treatment plants often fall short at eliminating micropollutants due to their chemical persistence. This necessitates advanced purification processes that must be monitored and controlled. Our approach employs magnetophoresis with magnetic beads and dynamic electromagnets, allowing adaptive control over the magnetic field to effectively isolate marker pollutants. Results show that by dynamically modulating the power of the electromagnets, a high separation efficiency of up to 90 % is achieved without agglomeration of the magnetic beads. This adaptability ensures the system’s robust performance even under fluctuating conditions, such as changes in flow rate or particle size. The subsequent detection of separated micropollutants will be achieved via Raman spectroscopy, providing high sensitivity and specificity for continuous water quality monitoring. While measured magnetic flux densities were slightly lower than simulations predicted, the study affirms the system’s potential as a responsive and efficient tool for monitoring water pollution. Further optimization and scaling could lead to significant advancements in real-time water purification technologies.
Jansen et al. (Thu,) studied this question.
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